Cellulose ether bụ ihe mgbakwunye bụ isi na ngwa agha agwakọtara agwakọta. A na-ewebata ụdị na njirimara nhazi nke cellulose ether. A na-enyocha mmetụta nke hypromellose ether HPMC na akụrụngwa nke ngwa agha n'usoro. Nsonaazụ gosiri na HPMC nwere ike imeziwanye ihe na-ejide mmiri nke ngwa agha, belata ọdịnaya mmiri, belata njupụta nke ngwakọta ngwa agha, gbatịa oge nhazi, ma belata ike mgbanwe na mkpakọ nke ngwa agha. Mortar bụ otu n'ime ihe ndị a na-ejikarị eme ihe na ụlọ ọrụ mmepụta ihe. Site na mmepe nke sayensị ihe na ọchịchọ nke ịdị mma ihe owuwu, ngwa agha aghọwo ihe a ma ama dị ka kọmpat agwakọtara agwakọta, ejirila nke nta nke nta na-ere ahịa. E jiri ya tụnyere ngwa agha a kwadebere site na nkà na ụzụ ọdịnala, mmepụta azụmahịa nke ngwa agha nwere ọtụtụ uru: 1, àgwà ngwaahịa dị elu; 2, nrụpụta ngwaahịa dị elu; 3, obere mmetọ gburugburu ebe obibi, adaba maka ihe owuwu mepere emepe, ugbu a, enwere Guangzhou, Shanghai, Beijing na obodo ndị ọzọ iji kwalite ngwa agha agwakọta dị njikere, ụkpụrụ ụlọ ọrụ metụtara, ụkpụrụ na ụkpụrụ mba ka enyerela ma ọ bụ nye ya n'oge na-adịghị anya. Nnukwu ihe dị iche n'etiti ngwa agha agwakọtara agwakọta na ngwa agha ọdịnala bụ mgbakwunye kemịkalụ admixture, nke cellulose ether bụ ihe a na-ejikarị eme ihe. A na-ejikarị cellulose ether eme ihe dị ka onye na-ejigide mmiri iji melite arụmọrụ nke ngwa agha agwakọta. Ya mere, ọ na-enye aka ịhọrọ ma jiri cellulose ether mee ihe n'ụzọ ziri ezi na iji hụ na nkwụsi ike nke ịrụ ọrụ nke ciment mortar site n'ịghọtakwuo mmetụta nke ụdị cellulose ether na njirimara nhazi na arụmọrụ nke ciment mortar.
1. The ụdị na Ọdịdị nke cellulose ether cellulose ether bụ ụdị mmiri-soluble polymer ihe, ọ bụ nke eke cellulose site alkali ngwọta, grafting mmeghachi omume (etherification) , ịsacha, ihicha, egweri na ndị ọzọ Filiks. A na-ekewa ethers cellulose n'ime ụdị ionic na ndị na-abụghị ionic. Ionic cellulose nwere carboxymethyl cellulose salts, ebe ndị na-abụghị ionic cellulose nwere hydroxyethyl cellulose ethers, hydroxypropyl methyl cellulose ethers, Methyl cellulose ethers, wdg. N'ihi na ionic cellulose ether (carboxymethyl cellulose) bụ ejighị n'aka na ọnụnọ nke calcium ion, ọ na-adịkarịghị eji na akọrọ ntụ ntụ ngwaahịa na cementitious ihe dị ka ciment na hydrated wayo, cellulose ethers eji akọrọ ngwa agha bụ tumadi hydroxyethyl methyl cellulose ethers (HEMC). ) na hydroxypropyl methyl cellulose ethers (HPMC), òkè ahịa ha karịrị 90% 2. Mmetụta nke cellulose ether na ihe onwunwe nke ciment motars 1. The raw material cellulose ether for test: made by Shandong Gomez Chemical Co., Ltd., viscosity: 75000; Simenti: 32.5 ọkwa simenti mejupụtara; Aja: ọkara aja; Fly Ash: II ọkwa. 2 ule nyocha 1. Mmetụta na-ebelata mmiri nke cellulose ether Figure 2 bụ mmekọrịta dị n'etiti nkwụsi ike nke ngwa agha na ọdịnaya nke cellulose ether n'otu ngwakọta ahụ, jiri nwayọọ nwayọọ mụbaa. Mgbe 0.3 ‰ gbakwunyere, nkwụsi ike nke ngwa agha na-abawanye site na ihe dịka 50%, nke na-egosi na cellulose ether nwere ike imeziwanye ọrụ nke ngwa agha ahụ, na-abawanye ọdịnaya nke cellulose ether, a na-eji nwayọọ nwayọọ belata mmiri mmiri. . Enwere ike iche na cellulose ether nwere ụfọdụ mmetụta na-ebelata mmiri. 2. Ngwunye mmiri na-ejide mmiri na-ezo aka n'ikike nke ngwa agha iji jide mmiri, ma bụrụkwa ihe ngosi arụmọrụ iji tụọ nkwụsi ike nke ngwa ngwa ciment ọhụrụ n'oge njem na ebe a na-adọba ụgbọala. Enwere ike tụọ njide mmiri nke ngwa ngwa agwakọta dị njikere site na ndeksi nke Delamination na njide mmiri, mana ọ naghị enwe mmetụta zuru oke iji gosipụta ọdịiche ahụ n'ihi ịgbakwunye ihe na-ejide mmiri. Nnwale njide mmiri bụ ịgbakọ ọnụego njide mmiri site na ịlele mgbanwe mma nke akwụkwọ nzacha tupu na mgbe kọntaktị na mpaghara ngwa ngwa akọwapụtara n'ime oge ụfọdụ. N'ihi na mmiri dị mma nke mpempe akwụkwọ nzacha, ọ bụrụgodị na njigide mmiri nke ngwa ngwa dị oke elu, akwụkwọ nzacha ka nwere ike ịmịnye mmiri nke ngwa ngwa, ya mere ọnụọgụ mmiri na-ejide mmiri nwere ike igosi n'ụzọ ziri ezi njigide mmiri nke ngwa agha, nke dị elu nke njide mmiri. ọnụego, mma na-ejigide mmiri.
Oge nzipu: Ọktoba 30-2023